Sponge brush



FIG. 1 is a top isometric view of the sponge brush according to myinvention;

FIG. 2 is a bottom isometric view thereof;

FIG. 3 is a left side view thereof, the right side being a mirror image;

FIG. 4 is a top view thereof;

FIG. 5 is a bottom view thereof;

FIG. 6 is a front elevational view thereof; and,

FIG. 7 is a rear elevational view thereof.

The ornamental design for a sponge brush, as shown and described.